MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a heuristic firing for a malicious redirector link, which points to `https://ttraff.ru/pify?keyword=english+grammar+worksheets+simple+present+tense`. Additionally, the PDF is identified as a link farm, with numerous embedded URLs, many of which are hosted on `cdn.shopify.com`. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the same redirector URL and a benign-looking topic, suggesting a lure.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.ru/pify?keyword=english+grammar+worksheets+simple+present+tense
- http://files.darranparkprimary.com/uploads/1/3/2/3/132303151/koxiravasom.pdf
- http://dapofog.alfredphillipmoore.com/uploads/1/3/0/9/130969656/tumawiwukebimatedaj.pdf
- https://cdn.shopify.com/s/files/1/0447/0921/6409/files/this_weeks_fishing_report_adelaide.pdf
- https://cdn.shopify.com/s/files/1/0436/0660/5981/files/faliji.pdf
- https://cdn.shopify.com/s/files/1/0431/6997/2384/files/autodesk_inventor_2016.pdf
- https://cdn.shopify.com/s/files/1/0431/6318/9412/files/hygge_meik_wiking_gratis.pdf
- https://cdn.shopify.com/s/files/1/0430/6187/0741/files/guwimixuxoninomubodudere.pdf
- https://cdn.shopify.com/s/files/1/0438/2529/9606/files/danitiz.pdf
- https://cdn.shopify.com/s/files/1/0435/9254/8515/files/john_deere_770.pdf
- https://cdn.shopify.com/s/files/1/0430/6586/8437/files/xogumofozozur.pdf
- https://cdn.shopify.com/s/files/1/0432/1745/3211/files/zisafo.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000052f9.bin6219532553ae605bcc24eb37c1f114f0880714bf86d2d5efcca16fc168c55eb9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x52F9 | 5348 bytes |
font_01_sfnt_off0000650d.bin7c69e93123ac21b203c8ae2394479acb74edf05a8a439e3a005ef9411cd71d7b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x650D | 10552 bytes |
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